86 results about "Caster angle" patented technology

According to the differential lock automatic control method and system and the vehicle, whether the vehicle is in a special road condition or not is recognized through navigation and a camera, a vehicle suspension jumping signal is obtained through an air suspension sensor, and the vehicle wheel speed difference, the vehicle speed, the front-back inclination angle and the left-right inclination angle are combined; if it is judged that the vehicle is located on the specified special road surface, the vehicle speed is lower than the set threshold value and the left and right wheel speed difference is smaller than the set threshold value, the differential lock automatically intervenes, if it is judged that the vehicle leaves the specified special road surface or the vehicle speed exceeds the preset value, the differential lock automatically exits, intelligent differential lock control is achieved, and the driving experience of customers is effectively improved.

A multi-vehicle control system (MVCS) for control of a multi-vehicle system having independently powered and steered lead and trailer vehicles connected by a slidable length sensing tow bar system. The MVCS includes a controller configured to receive throttle, brake, and steering signals from the lead vehicle, receive signals from the tow bar system indicating an extension length of the tow bar system, a front angle deviation of the lead vehicle, and a rear angle deviation of the trailer vehicle. The controller is further configured to determine, based on the received signals, a trailer vehicle acceleration / deceleration output and a trailer vehicle steering output, determine a driving scenario of the multi-vehicle system, and operate the multi-vehicle system based on the determined driving scenario and the determined trailer vehicle acceleration / deceleration output and trailer vehicle steering output.

The invention provides a dummy positioning method and device based on seat working conditions, a medium and equipment, and the method comprises the steps: dividing a target seat into a plurality of backward inclination angles, measuring key point coordinates of a man-machine dummy model, a collision dummy and a target driver at the plurality of backward inclination angles, and taking the key point coordinates of the target driver as a standard, evaluating the applicability of the man-machine dummy model and the collision dummy, selecting a target man-machine dummy model and a target collision dummy with better applicability, and calculating the target key point coordinate of a target driver corresponding to the key point coordinate of the target man-machine dummy model in the experiment process and taking the target key point coordinate as the key point coordinate of the target collision dummy; therefore, the positioning information of the target collision dummy under the large-angle seat working condition is obtained.

Provided is an armrest structure for a vehicle seat, the angle of an armrest being adjustable, and the angle being maintained regardless of the reclining angle of a seat back. An armrest structure (AK) for a vehicle seat is provided to a vehicle seat (ST) having a seat cushion (91), a seat back (92) that can be tilted backward relative to the seat cushion (91), and an armrest (93) attached to the seat back (92), the armrest structure being provided with: a brake unit (AKA) that brakes the seat cushion (91) and the armrest (93); when the torque applied to the armrest (93) exceeds a specified value, the armrest (93) is allowed to rotate around an axis (CL3), so that the angle of the armrest (93) relative to the seat cushion (91) can be adjusted, and when the torque does not exceed the specified value, rotation is forbidden; and a parallel link portion (AKB) that maintains the angle of the armrest (93) with respect to the seat cushion (91) regardless of the reclining angle of the seat back (92) during the reclining operation.

An over actuated system capable of controlling wheel parameters, such as speed (e.g., by torque and braking), steering angles, caster angles, camber angles, and toe angles, of wheels in an associated vehicle. The system may determine the associated vehicle is in a rollover state and adjust wheel parameters to prevent vehicle rollover. Additionally, the system may determine a driving state and dynamically adjust wheel parameters to optimize driving, including, for example, cornering and parking. Such a system may also dynamically detect wheel misalignment and provide alignment and / or corrective driving solutions. Further, by utilizing degenerate solutions for driving, the system may also estimate tire-surface parameterization data for various road surfaces and make such estimates available for other vehicles via a network.

The invention discloses a vehicle chassis comprehensive detection system and method based on a visual detection method. The system comprises a Bluetooth sensor and a signal receiver to realize wheel positioning, an inclination angle sensor and a weight measuring instrument compensate angle inclination and center-of-gravity shift caused by ground inclination, parameters of a wheel toe-in angle, a camber angle, a kingpin inclination angle and a kingpin caster angle in a static state of a vehicle are visually detected, and accurate wheel positioning parameters are obtained after correction and compensation. The system does not need frame type shooting, wheel positioning measurement can be independently completed, the system structure is simple, the equipment cost is remarkably reduced, complex environmental factors such as uneven ground and dynamic inclination of a vehicle can be effectively handled, a stable and accurate positioning solution is provided, and the system is widely applied to positioning of most wheels.

The invention discloses a high-integration driving unit with an active variable geometric positioning parameter function. The high-integration driving unit is mainly composed of a wheel assembly, a suspension system, a first actuator and a second actuator. The actuator is arranged on the upper control arm, so that the mechanical load borne by the actuating mechanism during working is effectively reduced. The interior of the actuator is driven by a self-locking mechanism, continuous energy consumption is not needed when positioning parameters are maintained, and the steady-state power consumption of the system is remarkably reduced. In the aspect of mechanism connection, through combined arrangement of kinematic pairs, accurate matching of the degree of freedom of movement of the mechanism is achieved, the problems of interference and movement uncertainty in the adjusting process are effectively solved, and the accuracy of action execution is ensured. The unit integrates the functions of steering, active variable camber, active variable kingpin caster angle and fault tolerance. Dynamic real-time adjustment of geometric parameters is achieved through the compact structural layout, the vehicle control limit and stability are improved, and meanwhile the space utilization rate and work reliability are extremely high.

The invention provides a posture adjusting method, system and equipment for a cold regenerator and a medium, and belongs to the technical field of cold regenerator control, the method comprises the following steps: descending four supporting legs of the cold regenerator before construction, enabling the whole machine to be horizontal, enabling a milling hub to be flush with the ground, and recording the heights of the four supporting legs as zero point heights; lowering the milling hub to a target cutting depth, and collecting initial values of a left-right inclination angle, a front-back inclination angle, four support leg oil cylinder pressures and an engine load rate corresponding to the zero point height; in the construction process, the real-time values of the left-right inclination angle, the front-back inclination angle, the pressure of the four supporting leg oil cylinders and the engine load rate are collected in real time; the change of the real-time value relative to the initial value is compared, the state of the corresponding supporting leg is judged to be pressed to the obstacle or the pit, the corresponding supporting leg ascends or descends till the collected real-time value recovers to the initial value, and automatic adjustment of the posture of the cold regenerator is completed. The machine body can be automatically kept horizontal, it is guaranteed that the cutting depth is stable, and construction precision and efficiency are improved.

A suspension device includes: a drive unit mounted inside a wheel; a first knuckle connected to the driving unit to rotate about a first axis; a second knuckle connected to the first knuckle to move along a second axis spaced apart from the first axis; a first suspension arm connected to the second knuckle to support the second knuckle with respect to a vehicle body; and a restricting member connected to the first suspension arm to restrict rotation of the second knuckle about the second shaft. A suspension device capable of reducing a kingpin offset value and improving driving stability of a vehicle by disposing a first shaft serving as a steering shaft of a wheel at a position relatively close to the wheel. A suspension device according to the present disclosure may absorb relative displacement between a second knuckle and a first arm body / limiting link due to a caster angle of a second shaft during a suspension behavior of a wheel through a first joint and a limiting joint.

The invention discloses a double-airbag damping base, a method and a passenger car seat, and relates to the technical field of vehicle damping, the double-airbag damping base comprises a base body, a first airbag and a second airbag are arranged in the base body in parallel, and an air path control unit is connected between the first airbag and the second airbag; the air path control unit comprises an air source and an electromagnetic valve set. The electromagnetic valve set comprises a first inflation electromagnetic valve and a first deflation electromagnetic valve which are connected with the first air bag, and a second inflation electromagnetic valve and a second deflation electromagnetic valve which are connected with the second air bag. The first inflation electromagnetic valve and the second inflation electromagnetic valve are connected to the output end of the air source in parallel. The electromagnetic valve set is connected with the controller which is used for adjusting the state of the electromagnetic valve set according to the control instruction and adjusting the inclination angle of the damping base. Inflation and deflation of the two air bags are controlled independently or in a linkage mode through the air path control unit, the supporting height of the air bags is changed, stepless and smooth adjustment of the front inclination angle or the rear inclination angle of the base is achieved, and fatigue caused by long-time driving can be effectively relieved.

The invention discloses a bicycle stability principle uncovering experiment device, and relates to the technical field of bicycle stability principles. The invention aims to vividly reveal the bicycle stability principle. The experiment table specifically comprises a first experiment table top and a second experiment table top, a side inclination hinge is arranged on the outer wall of the first experiment table top, and an additional rod is fixed to the outer wall of the top of the side inclination hinge. The experimental device can vividly demonstrate and prove that the gyroscopic effect is insufficient to keep the bicycle stable when the bicycle wheel rotates; the caster angle of the rotation shaft of the bicycle can generate a front wheel wake effect for stabilizing the bicycle; the front wheel of the heeling bicycle can automatically and correctly steer under the wake effect of the front wheel; centrifugal force generated by the bicycle which does redirection, such as rotary motion, can be used for centralizing the bicycle with side inclination; and the front wheel of the bicycle of which the front part of the rotation shaft of the front wheel is heavier can also automatically turn the front wheel of the bicycle with side inclination to the side inclination direction, so that the stability principle of the bicycle is vividly and vividly uncovered.

A device for changing the caster angle of the front system (1) of a motorcycle, through an articulated quadrilateral, characterized in that the supporting carrier (60) of the steering shaft (5) of the above mentioned front system (1) is connected to the frame (4) of the motorcycle, by two articulated links (14), so that the relative position of the above mentioned carrier (60) in relation to the frame (4) is changeable and determined by the current state of an activator (15), which consists of its primary member (15 A) and its secondary member (15B), wherein the secondary member (15B) is moving relative to the primary member (15A) when the activator (15) is operating, following an electrical signal sent by an electronic Control Unit (11) which receives and processes electrical signals relating to the instantaneous motorcycle kinetic state of the motorcycle, coming from at least one sensor (12).

The present invention relates to an angle adjustment disk assembly for a seat belt retractor, which is used to adjust the positioning angle of a vehicle sensing device, and includes a housing and an angle adjustment disk. The housing is used to be connected to the pivot transmission of a backrest of a vehicle seat, and the angle adjustment disk is received in the housing. The angle adjustment disk can rotate relative to the housing, and the angle adjustment disk has a core wire fixing portion. The angle adjustment disk has a long diameter portion and a short diameter portion, and the short diameter portion has a core wire winding portion extending from the core wire fixing portion in a first rotation direction. When the housing rotates relative to the angle adjustment disk in the first rotation direction, the core wire can be wound on the core wire winding portion. The first rotation direction corresponds to the backrest backward tilt angle adjustment direction. The housing includes a housing component, and the housing component has a long diameter portion and a short diameter portion. The short diameter portion of the angle adjustment disk is opposite to the short diameter portion of the housing component and is radially spaced apart from the long diameter portion of the housing component. The present invention also relates to a seat belt retractor including an angle adjustment disk assembly. The angle adjustment disk assembly has a compact structure, a small number of parts, and is easy to install.

Provided is a vehicle passenger seat airbag device and a vehicle passenger seat airbag control method. The vehicle passenger seat airbag device includes an airbag that is housed in an instrument panel of a vehicle and that is inflated and deployed toward an occupant seated on a passenger seat by supplying gas from an inflator. When a front collision of the vehicle is predicted or detected in a state in which a reclining angle of a seat back of the passenger seat is set to be equal to or greater than a predetermined angle, a position of a deployment surface of the airbag that comes into contact with the head of the occupant is changed to a second position that is located further to the rear of the vehicle than a first position when the reclining angle of the seat back is less than the predetermined angle.

The invention belongs to an amphibious vehicle spare tire and a sailing propulsion device in the technical field of amphibious vehicles. A servo motor (2-1) of the switching device (2) is connected with a screw rod (2-4), a connecting piece (2-3) is sleeved on the screw rod (2-4), a driving motor (2-5) is arranged at one end of the connecting piece (2-3), a connecting part (2-2) is connected with an upper positioning part (2-6) and a lower positioning part (2-7), the other end of the connecting piece (2-3) is clamped with the connecting part (2-2), and the screw rod (2-4) movably penetrates through the lower positioning part (2-7). And a propelling propeller (3-2) of the spare tire / sailing propelling device (3) is positioned on the inner ring of the tire (3-1). According to the amphibious vehicle spare tire and sailing propulsion device, the structure is simple, switching between the spare tire and the sailing propeller can be achieved, land operation of the vehicle is not affected when the spare tire is switched to the sailing propeller, the caster angle of the vehicle in water is increased when the sailing propeller is switched to the sailing propeller, meanwhile, water resistance is reduced, and the trafficability of the vehicle in water is improved.

The present invention relates to a child safety seat, comprising: a base (1); a seat body (2), arranged above the base (1); a rotating component (3), arranged between the seat body (2) and the base (1); and a locking and unlocking component, comprising an operating handle (4), used to at least realize the switching of the locking and unlocking component from a locked state to an unlocked state. In the locked state, the rotating component (3), the base (1) and the seat body (2) are relatively fixed. When the seat body (2) is switched to an unlocked state by operating the handle (4), the front and rear tilt angles of the seat body (2) relative to the base (1) and the rotation angle around a preset axis can be adjusted. This child safety seat can realize two functional adjustments of the body rotation angle and the body tilt angle through a single operation, making the use function adjustment of the child safety seat more convenient and simplifying the structural design of the child safety seat.

The present application relates to a vehicle control system. A control device is configured to execute, when a steering request is received in a parking state or a creep state in which a vehicle speed does not exceed a predetermined vehicle speed from the parking state, a caster change control of controlling a driving force application device or a driving force application device and a braking force application device in such a manner that a caster of the steering wheel is reduced, the control device applying, in the caster change control, a driving force in a direction toward the other wheel to one of front and rear wheels and applying a braking force or a driving force in a direction toward the one wheel to the other wheel so as to become the parking state or the creep state in response to a request related to acceleration or deceleration.

The invention relates to the technical field of forklift control, in particular to a multi-joint control method based on a forklift, which comprises the following steps: getting floor tiles and inclining a pallet fork to the maximum caster angle; the pallet fork is shaken so that the floor tiles can be stacked in a preset shape; determining a first distance and a second distance between the brick paving machine and the brick paving starting point to determine a distance difference, and determining the accuracy of the real-time coordinates according to the distance difference; responding to the real-time coordinates to determine feeding coordinates of the forklift; the feeding advancing speed of the forklift is controlled in response to the feeding coordinates and the brick paving speed; the characterization state of the distance between the paver and the forklift during feeding is determined, and the feeding matching state between the forklift and the brick paving machine is determined in combination with the brick paving speed; an adjusting strategy is determined according to the feeding matching state of the preset number of times; and determining the jitter characterization trend of the forklift on the paved pavement so as to determine the pressure of the road roller. According to the invention, multi-equipment combined control among the forklift, the brick paving machine and the road roller is realized, the overall construction efficiency is improved, and the construction difficulty and complexity are reduced.

A caster angle measuring tool, a caster angle measuring device (20) and a front axle (10). The caster angle measuring tool comprises the front axle (10) and the caster angle measuring device (20). The front axle (10) comprises an axle tube (11) and a steering knuckle (12) detachably connected to the axle tube (11). A measuring device fixing portion (121) is provided on the steering knuckle (12). The caster angle measuring device (20) comprises a fixing base (21) and a level instrument (22) mounted on the fixing base (21). The fixing base (21) is detachably mounted on the measuring device fixing portion (121). The caster angle measuring tool enables rapid and accurate positioning of the measuring device.

The embodiment of the utility model provides a plate spring base, a plate spring suspension system and a vehicle, and belongs to the technical field of plate spring suspension systems, the plate spring base is used for being installed between an axle and a plate spring of the vehicle, and the plate spring base is prepared from polyamide and comprises a first installation face and a second installation face, the second mounting slope is used for being arranged on the side, facing the plate spring, of the plate spring base, the ends, close to each other, of the first mounting face and the second mounting slope form the thin end of the plate spring base, and the thin end is arranged in the vehicle advancing direction. The plate spring base is made of polyamide materials, light weight is achieved, meanwhile, the included angle is formed between the first installation face and the second installation inclined face, the thin end of the plate spring base is arranged towards the advancing direction of a vehicle, the caster angle of a main pin is guaranteed, and the plate spring base is used for resetting wheels and improving the stability of linear driving; steering force applied to the steering wheel by a driver is reduced, and vehicle driving stability is improved.

To provide a vehicular occupant protection device that can protect the head of an occupant, at the time of side collision of a vehicle, without having influence on inflation and expansion of a curtain airbag, regardless of an angle of backward tilting of a seat back of a vehicular seat.SOLUTION: A vehicular occupant protection device 10 is provided with: a side air bag 42 for a head, loaded on at least an outside end part in a vehicle width direction in a headrest 18 of vehicular seat 14, which is configured to be supplied with gas at the time of side collision of a vehicle 12 to inflate and expand toward a front side of the vehicle, at least outside in the vehicle width direction of the head H of an occupant P seated on a seat cushion 15 of the vehicular seat 14; and a curtain airbag 32, loaded on least on a roof side rail 28 of the vehicle 12, which is supplied with gas at the time of side collision of the vehicle 12 to inflate and expand toward a lower side of the vehicle. The side airbag 42 for the head is configured to inflate and expand only when the seat back 16 of the vehicular seat 12 is tilted backward at more than a predetermined angle.SELECTED DRAWING: Figure 1

The utility model discloses a connecting device for changing a caster angle and an independent suspension with the same, and the connecting device for changing the caster angle comprises a horizontal adjusting mechanism which is arranged between an upper swing arm assembly and a lower swing arm assembly and two ends of a steering knuckle and is used for changing the fixed positions of the two ends of the steering knuckle in the X direction of a vehicle, the angle adjusting mechanism is used for changing the included angle between the vertical line of the axis of the overdrive half shaft and the axis of the steering knuckle. According to the connecting device for changing the caster angle, the caster angle of a kingpin of a vehicle can be conveniently adjusted under the condition that an independent suspension is not integrally disassembled.

This disclosure provides a vehicle and a control method, a control device and a storage medium, the method comprising the steps of: obtaining the wheel speed difference at the current vehicle speed when it is determined that the vehicle's steer-by-wire system has failed; obtaining a positive scrub radius value; determining a target steering angle for the wheels using the wheel speed difference and the positive scrub radius value; and controlling the wheels using the target steering angle. The method of this disclosure enables steering control of the vehicle using the wheel speed difference and positive scrub radius when the steer-by-wire system fails, and does not require the addition of other components, thereby providing an external backup system after steer-by-wire failure, improving vehicle safety and reducing costs.

Disclosed is a vehicle tuning and calibration system and associated methods for diagnosing and correcting issues involving vehicle performance, driving characteristics, and / or driver assist features. The system includes multiple sensor packages with connectors for mounting a different sensor package to a different wheel of a vehicle. Each sensor package includes sensors that generate measurements for a positioning and movements of the wheel onto which that sensor package is mounted. The system also includes a controller that receives the measurements generated by the sensor packages mounted to the different wheels of the vehicle. The controller generates a user interface with visual representations that are derived from the measurements. The visual representations may identify toe, camber, caster, and other alignment issues detected for different wheels, adjustments to correct the detected issues, and positions and orientations at which to place targets relative to the vehicle for vehicle sensor calibration.

A vehicle control system according to various embodiments can include a control unit that receives data from a plurality of sensors which monitors an electronic limited slip differential mounted to a vehicle and detects road conditions. A prediction module executed by a processor predicts, based on electronic limited slip differential data and road condition data received by the control unit, a wheel alignment adjustment for the road conditions that the vehicle approaches and encounters along a road and generates a control signal based on the predicted wheel alignment adjustment. A wheel alignment adjustment mechanism, connected to a wheel mounted to the vehicle, automatically adjusts the wheel alignment for the wheel in response to the control signal such that at least one of a camber angle, a toe angle, and a caster angle for the wheel is adjusted as the vehicle travels across varying road conditions.

Modular track widening device for off-road vehicles with rigid axle (1), characterized in that it consists of two coaxially screwable spacer discs - an inner spacer disc (2) and an outer spacer disc (3) - per side of the vehicle, wherein the spacer discs are mounted further inwards on the axle and an angular offset between the discs is provided by the bore arrangement for caster correction in raised vehicles, and the device is designed in such a way that the original steering roll radius is maintained.

The invention discloses a large-span suspended pouring beam prestress tensioning construction device which comprises suspended pouring beam sections and a hanging basket assembly. The hanging basket assembly is composed of a quadrilateral frame, a track structure, a bottom beam structure, a middle beam structure, a middle portal, a front upper cross beam, a sling structure, an anchoring rib structure and a molding structure. The quadrilateral frame adopts a parallelogram frame design, and stable movement of the hanging basket can be achieved in cooperation with a rail structure. And by arranging the anchor bar stress adjusting structure and the sling stress adjusting structure, the construction linear control precision and the structural rigidity are effectively improved. A stress interference wheel structure integrated in the system can actively limit the front-back inclination angle in the hanging basket forward moving and anchor disengaging process, and the hanging basket is prevented from deviating and losing stability. Molding structures such as the inner mold and the side mold are flexibly connected through guide beams and roller hanging brackets, and rapid hoisting and dismounting are facilitated. And pre-pressing loading and real-time monitoring measures further ensure the construction quality and safety of the beam body.

The present invention relates to the technical field of diaphragm wall construction equipment, in particular to a TPD method machine and its construction method, which includes a chassis system, a vehicle frame, a gantry system and a chain cutter assembly. The vehicle frame is installed on the chassis system, and the gantry system is arranged on the vehicle frame and connected through front and rear tilt cylinders. The chain cutter assembly is installed on the lifting frame of the gantry system. The chassis system is composed of two sets of traveling components, a connecting beam and a mounting seat. The vehicle frame is connected to the chassis through a slide rail system and is equipped with front and rear drive cylinders. The gantry system is composed of a fixed gantry and a rotating gantry, including a central rotating shaft tooling and a secondary rotating shaft tooling, as well as left and right tilt cylinders for adjusting the inclination angle of the rotating gantry. This solution improves the verticality control accuracy of the chain cutter assembly and the inclination angle adjustment ability of the gantry system.

The invention discloses a double-kingpin steering type double-wishbone hub motor self-stabilization high-integration traveling unit which comprises a wheel assembly, a first steering system, a second steering system and a suspension system. The running unit integrates a driving system, a braking system, a rotating system and a suspending system, wherein the driving system and the braking system are integrated on the wheel assembly. The first steering system is a main steering system and has a main pin positioning parameter meeting the operation stability requirement of the vehicle; the second steering system is an auxiliary steering system and is a backup system of the main steering system, and a main pin of the second steering system is perpendicular to the wheel ground plane. When the speed of a vehicle applying the plurality of driving units is in a shimmy dangerous interval, the driving units actively reduce a kingpin caster angle, increase a kingpin inclination angle and a wheel camber angle by controlling the mutual cooperation of the first steering system and the second steering system on the premise of ensuring that the target wheel rotation angle is not changed, so that the shimmy effect of the vehicle is improved. The active suppression of the wheel swing amplitude is realized, and the driving safety of the vehicle is ensured.

Front shock absorbers and related support (i.e. suspension) structures are within the frame of an electric snowmobile. The structure includes upper and lower suspension A-arms and a spindle for both skis. A rear connection point for the lower suspension A-arm is placed more to the rear within the frame. The length of the front shock absorbers is designed to be larger. This configuration is possible because of more space available in the electrically driven snowmobile. The caster (β) and camber (α) angles may be kept as constant during any compression magnitude of the front shock absorbers.